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Novel efficient repairing method for anion-cation resin

An anion resin and repair method technology, applied in ion exchange, ion exchange regeneration, chemical instruments and methods, etc., can solve the problems of short resin life, high cost, poor repair effect, etc., and achieve long service life, low regeneration cost, The effect of short repair time

Pending Publication Date: 2022-06-03
山东钢铁集团永锋临港有限公司
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AI Technical Summary

Problems solved by technology

Therefore, it is urgent to design a new and efficient repair method of anion and cation resins to solve the problems of poor repair effect, high cost and short resin life of traditional resins.

Method used

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  • Novel efficient repairing method for anion-cation resin

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Embodiment Construction

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described in further detail below with reference to the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] A novel and efficient repair method of anion and cation resin, the specific operation method is as follows:

[0041] First, determine whether the resin is oxidized and deteriorated. If oxidized and deteriorated, the chemical structure of the resin is destroyed, and the performance repair will be irreversible.

[0042] Example: Oxidants in water are mainly free chlorine and nitrate. Generally free chlorine is more. Taking tap water as the main water source, the periodic water production decreased significantly within half a year of production, and the periodic water production of...

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Abstract

The invention relates to the technical field of resin repair, and particularly discloses a novel efficient anion-cation resin repair method which comprises the following steps: 1) firstly judging whether resin is oxidized and deteriorated or not, and if the resin is oxidized and deteriorated and the chemical structure of the resin is damaged, the performance repair is irreversible; (2) repairing and regenerating the performance of the cation single / double-layer exchanger resin; (3) repairing and regenerating by using an anion exchanger-double-chamber double-layer bed; the content of organic matters in water is reduced through activated carbon, which is a premise and guarantee for scientifically prolonging the service life of ion exchange resin in subsequent regular repair treatment of resin; the low-cost economy is realized on the aspects of acid, alkali and water consumption; relevance control of the optimal period of maintainability repair and resin performance and service life is achieved; the repairing time is short, the resin performance recovery degree is good, the ideal effect can be achieved, the regeneration cost is low, and the resin service life is long.

Description

technical field [0001] The invention relates to the technical field of resin repair, in particular to a novel and efficient repair method of anion and cation resin. Background technique [0002] In the operation of the thermal power generation desalination system, due to various reasons, the anion and cation exchange resins have the problem of being polluted. Especially the pollution of calcium, iron, colloidal silicon, free chlorine (Cl) and organic matter, the resin performance after pollution will decrease, the working exchange capacity will decrease, the amount of ion leakage will increase, the quality of effluent will decrease, the consumption of acid and alkali will increase, and the amount of flushing water will be large. Costs have increased substantially. One of these contaminations is the deterioration of the resin and the destruction of its chemical structure. This contamination results in permanent resin failure and irreversible exchange performance. In another...

Claims

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Application Information

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IPC IPC(8): B01J49/00C02F1/42C02F1/28C02F101/12
CPCB01J49/00C02F1/42C02F1/283C02F2001/422C02F2001/425C02F2101/12Y02A20/131
Inventor 黄小群
Owner 山东钢铁集团永锋临港有限公司
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